Printing-eliminating device for adding-machines.



U. WALES.

PRINTING BLIMINATING DEVIGE FOB. ADDING MACHINES.

APPLIUATIOK FILED 00'1. 23,1906.

Patented Oct. 27, 1908.

6M Inventor:

"UNITED STATES PATENT OFFICE.

CHARLES WALES, OF CLEVELAND OHIO, ASSIGNOR TO THE ADDER MACHINE COMPANY,OF KINGSTON, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

PBINTING-ILIKINATING DEVICE FOR ADDING-MACHINES.

Specification of Letters Patent.

Patented Oct. 27, 1908.

Application flied October 28, 1908. flerial No. 340,186.

To all whom it may concern:

Be it known that I, CnAnLns WALES, a citizen of the United States,residing at Cleveland, in the county of Ouyahoga and State of Ohio, haveinvented certain new and useful Improvements in Printing-EliminatingDevices for Addin -ltlachines, of which the following is a seoiflcation.

My invention rc ates to adding machines and its object is to providemeans entirely under the control of the operator whereby the mechanismfor enumerating the items to be added may be utilized to accumulate itinto the total of the other items enumerated without, however, recordingit with such other items.

Machines of this class have reached a high de ree of erfection and areaccurate and relia le. Tiey commonly comprise accumulating mechanism andrecording or printing mechanism, and the usual operation 13 to set upthe items on keys, and then, by the movemcnt of a handle, or thevibration of a shaft, set in motion trains of mechanism whereby. theitems so set up are accumulated and recorded and finally, through othermechanism, a total is determined and recorded. There are a variety ofother functions performed b the different mechanism, but the above is teir main purpose.

It is convenient at times to accumulate an item without recordin it onthe slip on which other items are fiisted and recorded. Where themechanism is in its normal state this cannot be done because all of theitems enumerated by means of the keys are printed as the Y areaccumulated. I have, however,

rovi ed a means called an elimination ey or non-printing key wherebythefunction of the rinting mechanism is interrupted without a ecting thefunctions of the other mechanism. I also provide means for restoringthis function or keeping it interrupted at will.

In order to explain the inv ntion I shall describe it in connection withe related arts of an adding machine and I have soected for thatpurpose the machine which is the subject matter of Letters Patent No.797,032, issued to me August 15, 1905, and I refer to that patent for aparticular description of the mechanism not directly involved here.

In the drawing there is shown: in side elevation and (partial verticalsection, that portion of an a ding machine embodying my invention. Theregistering mechanism is not shown but it will be understood that itconsits of a bank of keys arranged in denominational series, each keyprovided with a stem by the depression of which a sto corresponding tothe numeral value of tl e ke depressed, is interposed in the path of mobars as described in the Wales atent above referred to. In thedrawing,-t e rack bars are designated 20. .These are each provided withtoothed racks 21 on their upper edges and are supported at their frontends upon links 22 suitably pivoted, and at their rear ends upon theextremities of hell crank levers 23 mounted to oscillate upon a shaft24. The other ends of the bell cranks are pivotally connected to therinting mechanism. The rack bars 20 are a apted to mesh with pinions 30with which the numeral wheels 31 are provided. These numeral wheelsdisplay the digits in proper order on their edges (not shown) and areall mounted on a common shaft 32, there being one wheel for eachdenominational series of keys.

It is readily seen, that when the rack bars 20 are moved forward, andthe racks are in mesh with the pinions 30 the extent of rotation of thewheels 31 is determined by the extent of the movement of such of therack bars 20 as are permitted to move by raising steps 25, such movementbeing governed by the position of the stops above referred to and thrownup by the depression of the keys.

A main shaft 40 is ada ted to vibrate either by a handle manua ly operted or from a suitable source of power. his oscillates a sector 41provided with a leg 42 which, in turn, through a pin 43, moves a trainof mechanism whereby the racks 20 are moved and through them movem nt iscommunicated to the printin mocha 'sm. This latter comprises a series 0type bars 50 arranged in vertical order on a carrier 51 so that when arack is moved its type bar is raised untilthe t pe carrying the numbercorresponding to t e extent of its movement is opposite the point ofprint. This point of rint is in a fixed horizontal plane and is o positethe shaft 52 of the platen 53 which in turn is mounted upon a carriage54 ada ted to move laterally in the machine. It w i be understood ofcourse that suitable means are provided to ink the type and propelforward the pa ier and to move the parts in harmony to erl 'orm theirfunctions.

he accumulating mechanism is not shown complete in the drawing. scribedin my former patent above referred it comprises carrying mechanismwhereby when a number greater than 9 is accumulated on one numeral wheelit is suitably transferred to the wheel of next higher denomination andzero restorin mechanism, whereby the parts are all re aced in theirinitial position when the adcing operation has taken place.

The printing mechanism comprises pivoted hammers 90, one for eachdenominational series, adapted to oscillate on a common bar 91 actuatedby individual springs 92 secured at their opposite ends to a common rockbar 93, actuated by mechanism not relevant to the present invention,although we may say that its function is to energize the springs 92.Mechanism is also provided normally to lock the hammers against movementuntil the time comes for their actuation.

A series of intermediate plungers 94 are arranged o posite the point ofprint and the function 0 the hammers 90, when released is to strike theplungeis to drive them a ainst the type bar ositioned to receive the bow and so to rope such type bars against the paper on t e laten so as toprint the item registered an accumulated in the other mechanism.

Each hammer is provided with a detent 95 adapted to engage with one of aseries of hammer hooks 96 pivoted on a bar 97 suitably located. Thesehooks are operated by a vertically movable release bar 98 adapted toslide in suitable bearings and are each provided with a tension s ring99 secured at its opposite end to a fixe point in the machine, with asto lug 100 placed immediately under the be crank lever 23, and a foot101 projecting laterally from the bar.

It is obvious that when the bell crank lever 23is oscillated upward itwill no lo or be in contact with the stop lug 100 aiid consequently therelease bar 98 will move upward under tension of the spring 99. Theupper end of the release bar will trip the hammer book 96 to disengageit from the detent 95 and the hammer 90 energized b the spring 92 willstrike the plunger 94 as a ove stated.

None of the arts so far described form part of this specific invention.

It is obvious that if the release bar 98 is prevented from moving tostrike the hammer 00k 96 when the lever 23 is vibrated, the hammer 90will not be actuated and the item embodied in the ositioned ty e barswill not be printed. 11 other wor s, if the release bar is preventedfrom rising, the function of the printing mechanism will be tem- It isfully de-,

the frame of the machine is this key 10 comprising a finger tip and akey stem 11. The atter is slotted at 12 and ada ted to engage with astop button 13, suita ly located on the frame of the machine. Arestoring spring 14 is secured to the key stem and to some otherconvenient place. At its lower extremity, the stem 11 is ivoted to oneend of a bell crank lever 15 a apted to oscillate on a pivot 16. Theother end of the lever is provided with a lateral interference bar 17.

here are a series of release bars arranged across the machine one foreach denominational series of t pe bars and hammers and each release barhas its lateral foot 101. If the key 10 is depressed it will oscillatethe lever 15 and move the bar 17 into the path of the foot 101 and soprevent the release bar from rising to trip the book. The interferencebar is made of such a width as to pass across the machine and it istoothed or slotted to pass between the series of release bars. Thebutton 13 serves to hold the key 10 down when it has been depressed, itbeing normally held undepressed under tension of the restorin spring 14.it shall e restored to its normal position, it

.is moved sli htly forward and away from the button 13 w en it at oncesprings upward.

What I claim as new is 1. In a machine of the class described,comprising adding mechanism and printing mec anism, the latter,comprising separate ty e, separate means whereby they are indivisuallypropelled to record their res ective figures separate holding means fort e propelling means and se arate releasing means to permit each propein means to operate, the combination therewit to suspend temporarily thefunction 0 the releasing means.

2. In a machine of the class described, com rising adding and printingmechanism, the atter comprising separate type, separate means wherebythey are individually propelled to record their respective figuresseparate holding means for the propelling means, and se arate releasingmeans to permit each propel 'ng means to operate, thecombinationtherewith of means adapted to suspend temporarily thefunction of the releasing means.

3. In a machine of the class described, comprising a printing mechanismprovided with type-bars and movable type, means for positioning the typebars, means by which each type is indivi ually propelled to record itsres ective number, separate holding means or the propelling means andseparate releasing means to permit each propellin means to operate, thecombination therewit When it is desired that of means ada ted of meansadapted to prevent the operation of the releasing means and thus preventthe prolpelling means from actuating the type, an a manually depressiblekey for actuating ireventmg means.

n a machine of the class described comprising a printing mechanismprovided with type bars, means for positionin them, hammers for strikingsuch bars, an hooks for holdin the hammers inactive, the combination terewith of means for preventing the disengagement of the hooks and thehammere.

5. In a machine of the class described, comprising a printing mechanismprovided with type bars, means for positioning them, hammers underconstant tension and adapted to strike the type bars when released, andhooks forrholdmg the hammers inactive, the combination therewith ofmeans for preventing the disengagement-of the hooks and the hammers.

6. In a machine of the class described, comprising adding andprinting-mechanism and means for actuating them, the printing mechanismbeing provided with t pe bars, plungers for striking the same andhammers adapted to strike the plungers when released, the combinationtherewith of hooks for holding the hammers inactive until released,means adapted normally to release said hooks automatically when theaccumulatin mechanism of the machine is operated, an means forpreventing said release.

7. In a machine of the class described, comprising adding and printingmechanism, and means for actuatin them, the printing mechanism beiplungers for stri g the same and hammers adapted to strike the plungerswhen released, the combination therewith of hooks for holding thehammers inactive until released,

said 4.

provi ed with type bars, P

means adapted normally to release said hooks automatically when theaccumulating mechanism of the machine is operated, an means forpreventing said release, consisting of a manually operated key.

8. In a machine of the class described, comprising adding and printingmechanism and means for actuating them, the printing mechanism beingprovided with t pe bars, plungers for striking the same and liammersadapted to strike the plungers when released, the combination therewithof hooks for holding the hammers inactive until released, means adaptednormally to release said hooks automatically when the accumulatingmechanism of the machine is operated, means for preventing said releaseconsisting of a manually operated key, and means or restoring said keyto its initial position after its operation.

9. In a machine of the class described, comprising adding and printingmechanism and means for actuating them, the printing mechanism beingprovided with t pe bars, plungers for striking the same and ammersadapted to strike the plungers when released, the combination therewithof hooks for holding the hammers inactive until released, means adaptednormally to release said hooks automatically when the accumulatingmechanism of the machine is operated, an means adapted to hold saidreleasing means inactive comprising a key adapted to be manuallydepresse an automatically raised after such depression.

In testimony whereof I afiix my signature in presence of two witnesses.

WILLIAM R. Baum, ALAN MODONNELL.

